John siuliv of  philadelphia



J. STULL. Sterepscope Case.

N5.12,451." x Patented-,55.211855 l Joran s'rUrgiif OFPHILADiELPHIA. PENNSYLVANIA,

' 1 sTEaEoscoPn-cA-sii Specification of Letters Patent No.

` To all thv/0m may concern.' i l Beit knownthat I, JOHN STULL, of the `city of Philadelphia and State of Pennsyl- V Vania,"v have inyented :a new and useful Im- 5 lprovementHin]'LStereoscopeCases; and I do erebyfdeclare that the following is a full, s clear, and exact description of the construc- 1 tion anduoperation offthe same, reference i ,l l'beinghad@to theannexedldrawings, formglio"ingapart"offthis.specification,inwhichw` @Figure `1","is alperspective View; Fig, a`

transverse sectionfr of ,the same,l like letters indicating "thefsamefparts `when on the severalgures j i j `gThe.nature fofymy nventionconsistsin so s s constructing a sterloscope case, thatthe part j 7' containingthe;itwotgures,"and that containf ing the` twolensesymay -becaused to pre` j u servetheiryparallelism in respect to each i other, as they aremoved :or adjustedto suit `,the fvisionl off different persons, and `at the sametime."bejadapted toclose up into a` s small thin caseu(like, or resembling the com` mon daguerr'eotype `cases)so as `to be `con- V25q`veniently carried" aboutthe person, oraflixed ;within[` afporte .monnaie, ladies` `work box or dressingcasefc.` without occupying much spacci j j i M s "Referringto ftheligsl` l, and-2, of the 30` drawings-A, isthewback part ofthe case, to which-` the igure`s`(B, 13,) are fixed in anyv `convenientinanner f C, isthefront,onlens-piecefin which I ixthe lenses. f(D,""JD,)"` so as to `be directly oppositethetwo figures, respectively. y

E, E, `E,are2three` connecting pieces of f j equal lengths, jointed in their middle (and, a,) `and attachedfalsfo, by joints (5, I), 5,) to thelens and figure pieces (at their two ends 40 'and bottom edges)3s`o as to fold or double "1 .i upon'themselves `respectively within the case when it is" closedor, become straightened, "or folded either inward or outward, the parallelismfof the front `and back, or lens 2155` piece andwfgure piece, being at thefsame time preserved thereby, during the moving i of the same to or from each other, as the visualorgans of different persons may re- 1` lquire for a `proper binocular effect.

It will be perceived that the front and back, or lensand ligure pieces of a stereo- :shown in the drawings, will preserve a perfectwparallelismin relation to each other, at

scope case `@constructed as described and 12,451, dated February 27, 1855.

ceed the size of a common daguerreotype case. In the mode of construction above described, it is contemplated to make use of the 'front piece, (C) which contains the lenses, (D, D,) as the outside cover or lid for the figure piece, the lensesbeing exposed.

From the peculiar combination and arrangement of the lens and figures pieces of stereoscope cases `as herein described, they becoine well adapted for application to porte jmonnaies, ladies work boxes, dressing cases, 4dac., and it is contemplated to x them therein, by making use of the lid of such cases for holding the figures, and attaching the lens piece by` means of the jointed pieces (E, E, E,) or their equivalents as described, using an outside flap or cover` proper, over the lens piece, or not, as expediency may suggest or require.

I am aware that an adjustable single flap, for holding the lenses in daguerreotype cases has been in use, but not being capable of preserving a parallelism, so as to suit the visual organs of diiferent persons, it does not possess or afford the accuracy and per fection required in perfect stereoscopic cases-the attainment of which accuracy and perfection, in a reduced and convenient case, is the object and result of my invention.

The jointed pieces (E) of Figs. l and 2 may be made of thin brass pieces hinged together-or, they may be made of paste board or any other suitable material, having their joints made of leather, or parchment, and

the whole covered with velvetor other suitable material.

Having thus described the construction and operation of my invention, I proceed to state `that I do not claim constructing a stereoscope case `with a singlel adjustable Hap, or supplementary lid within the case as such invention has been made and used before in daguerreotype cases-But `What I claim as my invention and desire to secure by` Letters Patent, is-

Constructing a stereoscope case with the three jointed pieces (E, E, E,) or their equivalents, so applied as to preserve at alll times a perfect parallelism between that part of the case containing the lenses. and

the part which contains the gures, so that type case) that may be conveniently carried a perfect stereoscope is formed of the Whole about the person, if so required, substanas described, and the tWo figures (B, B,) by tially as described.

binocular Vision, are apparently formed into JOHN STULL. 5 a, solid gure-the Whole being at the same Witnesses:

time adapted to fold or close into 'a small JOHN L. SMITH,

flat case (resembling the common daguerreo- T. GREEK CLAYTON. 

